click below
click below
Normal Size Small Size show me how
Intro DS Phys. Sci.
12 test questions
Question | Answer |
---|---|
What is a chemical change? | Starting with one substance and it ends up as something different. |
What is a physical change? | A change that can be changed back easily. It starts and end as the same substance. |
What does a chemical change look like? | Bubbles, fire, explosions, smell. |
What is matter? | Anything that exists. |
What does matter have to have? | Has weight or mass and takes up space. |
What are atoms? | The smallest parts of matter. Everything that exists, even cells, are made of atoms. |
What are cells? | The smallest parts of living things. All living things have cells. |
What are big things made out of? | Little things. |
What are the three states of matter? | Solid, liquid, gas. |
How do you melt a solid into a liquid? | Heat it up. |
How do you turn a liquid into a solid? | Cool it down. |
What are the two parts of a vector? | Size and direction. |